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Cdsenet TX2400-FPC-1908 2.4GHz FPC Internal Antenna | 1.5 dBi Gain | WiFi Bluetooth ZigBee Module
Cdsenet TX2400-FPC-1908 2.4GHz FPC Internal Antenna | 1.5 dBi Gain | WiFi Bluetooth ZigBee Module
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SKU:tx2400-fpc-1908
Product Overview
The TX2400-FPC-1908 is a precision-engineered 2.4GHz FPC (Flexible Printed Circuit) internal antenna delivering 1.5 dBi gain with VSWR ¡Ü1.5 across the ISM band (2400-2500 MHz). Measuring an ultra-compact 19mm ¡Á 8mm with 1g weight, this antenna features an IPEX-I (U.FL) connector for seamless integration into WiFi routers, Bluetooth devices, ZigBee modules, and IoT wireless communication systems. The flexible substrate construction enables conformal mounting in space-constrained enclosures, making it ideal for smart home devices, wearables, and compact wireless modules requiring minimal footprint and reliable 2.4GHz performance. Updated March 2026.
Technical Specifications
| Parameter | Technical Value |
|---|---|
| Frequency Range | 2400-2500 MHz (2.4GHz ISM Band) |
| Peak Gain | 1.5 dBi |
| VSWR | ¡Ü 1.5 @ 2400-2500 MHz |
| Input Impedance | 50 ¦¸ |
| Connector Type | IPEX-I (U.FL) with coaxial cable |
| Antenna Type | FPC Internal Antenna (Planar) |
| Antenna Dimensions | 19mm ¡Á 8mm ¡Á 0.15mm (L ¡Á W ¡Á T) |
| Cable Length | 80 mm (3.15 inches, typical) |
| Weight | 1 g (0.035 oz) |
| Substrate Material | Flexible Polyimide (PI) Film |
| Conductor Material | Copper (Electroplated) |
| Operating Temperature | -40¡ãC to +85¡ãC |
| Mounting Method | 3M Adhesive Backing |
| Certification | RoHS Compliant |
| Updated | March 2026 |
Product Details
Ultra-Compact 19mm ¡Á 8mm FPC Design
The TX2400-FPC-1908 achieves an industry-leading compact footprint of just 19mm ¡Á 8mm with 0.15mm thickness and 1g weight, making it one of the smallest 2.4GHz antennas available. The flexible polyimide substrate enables conformal mounting on curved surfaces and integration into ultra-compact enclosures where rigid antennas cannot fit. The 3M adhesive backing ensures secure attachment without screws or additional mounting hardware, ideal for wearables, miniaturized IoT sensors, and space-constrained wireless devices.
IPEX-I Connector for WiFi, Bluetooth, and ZigBee Modules
Features standard IPEX-I (U.FL) connector with 80mm low-loss coaxial cable, providing plug-and-play compatibility with ESP32, ESP8266, nRF52, CC2652, and other 2.4GHz wireless modules. The connector maintains insertion loss below 0.3 dB and is rated for 30+ mating cycles, ensuring reliable performance for WiFi (802.11b/g/n), Bluetooth (BLE 4.0/5.0), ZigBee, and Thread applications.
Professional Test Report
Verified using Agilent E5071C Network Analyzer at 2400-2500 MHz: VSWR measured consistently ¡Ü 1.5 across the entire 2.4GHz ISM band, ensuring excellent impedance matching. Peak gain of 1.5 dBi achieved with omnidirectional horizontal coverage. Return loss (S11) better than -14 dB throughout the operational bandwidth, confirming optimal power transfer to 50¦¸ systems. Antenna efficiency exceeds 60% when properly mounted with recommended ground plane clearance.
(Complete VSWR / S11 / radiation pattern / efficiency measurements available upon request)
Ideal Applications
WiFi & Bluetooth Devices
Perfect for WiFi routers, Bluetooth speakers, wireless earbuds, and dual-mode devices requiring compact 2.4GHz antenna integration.
Smart Home & IoT Sensors
Ideal for ZigBee sensors, Thread devices, smart switches, and home automation modules requiring minimal antenna footprint.
Wearable Electronics
Ultra-lightweight (1g) design suitable for smartwatches, fitness trackers, and health monitors requiring 2.4GHz connectivity.
Industrial Wireless Modules
Reliable antenna for industrial IoT gateways, wireless sensor networks, and M2M communication systems operating at 2.4GHz.
Resources
For detailed technical specifications, integration guidelines, recommended ground plane layouts, and antenna placement recommendations for 2.4GHz applications, please contact our technical support team or refer to the CDEBYTE FPC antenna application notes.
FAQ
Q: Is this antenna compatible with WiFi, Bluetooth, and ZigBee?
A: Yes, the TX2400-FPC-1908 operates across the entire 2.4GHz ISM band (2400-2500 MHz) with VSWR ¡Ü1.5, making it fully compatible with WiFi (802.11b/g/n/ax), Bluetooth (Classic and BLE 4.0/5.0/5.1/5.2), ZigBee (IEEE 802.15.4), Thread, and other 2.4GHz protocols. The 50¦¸ impedance and IPEX-I connector ensure compatibility with ESP32, ESP8266, nRF52, CC2652, and similar wireless modules.
Q: How do I install this ultra-compact FPC antenna?
A: Mount the antenna on or near a ground plane (minimum 30mm ¡Á 30mm recommended) away from metal components and batteries (5mm clearance). Clean the surface with isopropyl alcohol, peel the 3M adhesive backing, and press firmly. Connect the IPEX-I connector to your module's antenna port. The flexible substrate allows conformal mounting on curved surfaces with minimum 5mm bend radius.
Q: What is the expected WiFi/Bluetooth range?
A: With typical WiFi transmit power (15-20 dBm) and proper installation, expect 30-80 meters indoor range and 100-200 meters outdoor line-of-sight. Bluetooth range typically reaches 10-30 meters indoors. The 1.5 dBi gain provides approximately 1.4x range improvement compared to 0 dBi reference antennas. Internal placement reduces range by 20-30% versus external antennas.
Q: Can this antenna withstand industrial environments?
A: Yes, the TX2400-FPC-1908 operates reliably across -40¡ãC to +85¡ãC temperature range. The flexible polyimide substrate provides excellent UV resistance and chemical resistance. The antenna is RoHS compliant and suitable for industrial IoT applications. For outdoor use, enclose the antenna in a weatherproof plastic housing to protect against moisture and physical damage.